comparison tests/test-convert-filemap.t @ 39111:46da52f4b820

commit: try hard to reuse p1 manifest if nothing changed

This is all for commit reproducibility on "hg convert".

With this change, p1 manifest is reused if ctx.files() *to be committed* is
empty, and if new manifest entry is identical to p1. This is important
property for "hg convert" since memctx.files() built from a convert source
may be either a) more narrowed thanks to a committed ctx.files() which
provides more accurate status, or b) containing redundant files because of
sloppy filtering on e.g. octopus merge.

39110:f0c2653ca706

  scanning source...
  sorting...
  converting...
  0 3
  $ hg -R .-hg log -G -T '{shortest(node)} {desc}\n{files % "- {file}\n"}\n'
  o    e9ed 3
  |\
  | o  33a0 2
  | |  - f
  | |
  o |  f73e 1

39111:46da52f4b820

  scanning source...
  sorting...
  converting...
  0 3
  $ hg -R .-hg log -G -T '{shortest(node)} {desc}\n{files % "- {file}\n"}\n'
  o    bbfe 3
  |\
  | o  33a0 2
  | |  - f
  | |
  o |  f73e 1